ZWIEGNET Linux Consultants

Tomcat Consulting

Expert Apache Tomcat Deployment & Optimization

Professional Tomcat consulting — installation, configuration, performance tuning, security hardening, clustering, deployment automation, and troubleshooting for Java web applications on Linux and Unix.

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Our Tomcat Consulting Services

Zwiegnet delivers advanced Apache Tomcat expertise — the leading open-source Java servlet container for hosting web applications. We support all current Tomcat versions (9, 10, 11) on Linux platforms, helping you run scalable, secure, and high-performance Java environments.

Our Tomcat services include:

  • Installation & Configuration – Fresh Tomcat deployments, server.xml tuning, context/path setup, and integration with Apache/NGINX as reverse proxy.
  • Performance Tuning – Connector optimization (APR/NIO/NIO2), thread pools, JVM memory settings (Heap, Metaspace), garbage collection, and session management.
  • Security Hardening – Manager/GUI access controls, valve configurations (RemoteAddrValve), TLS setup, shutdown port disable, and compliance with OWASP guidelines.
  • Clustering & High Availability – Session replication, sticky sessions with mod_jk/mod_proxy_balancer, Tomcat clustering, and integration with load balancers (HAProxy/NGINX).
  • Deployment Automation – WAR deployment pipelines, Ansible playbooks, manager script automation, and blue-green/rolling deployments.
  • JVM & Application Tuning – JVM flags, class loading, connection pooling (Tomcat JDBC), and application-specific optimizations.
  • Logging & Monitoring – Custom logging with Log4j/Logback, access log valves, integration with Prometheus/JMX exporter, and alerting.
  • Database Integration – JNDI data sources, connection pool tuning for Oracle, PostgreSQL, MySQL, and leak prevention.
  • Upgrade & Migration – Smooth upgrades between major Tomcat versions, migration from older servlet containers (Jetty, WebLogic), and Java version compatibility.
  • Troubleshooting & Break-Fix – Diagnosis of OutOfMemory errors, thread deadlocks, slow responses, permgen issues, and configuration conflicts.

Tomcat is the gold standard for Java web apps — we ensure your instances are fast, secure, and ready for production workloads of any scale.

Located between Madison and Milwaukee, Wisconsin since 2009 — direct access to experienced Tomcat administrators with enterprise Java deployment expertise.

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